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Finding the Fourth Proportional to 525,794.88, 788,356.08 and 312,505.89

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Solution

The fourth proportional to 525,794.88, 788,356.08 and 312,505.89 is: 468,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,794.88 : 788,356.08 = 312,505.89 : x
  2. Step 2: Convert to fraction form
    525,794.88/788,356.08 = 312,505.89/x
  3. Step 3: Cross multiply
    525,794.88x = 788,356.08 × 312,505.89
  4. Step 4: Simplify right side
    525,794.88x = 246,365,918,417.31
  5. Step 5: Solve for x
    x = 246,365,918,417.31/525,794.88
  6. Step 6: Final answer
    x = 468,558.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.